Vibrator



E. N. GOODLETT.

VIBRATOR.

APPLICATION FILED APR.25, 19x9. RENEWED APR. 10. 1920.

Patented May 18, 1920.

aAM/Q 'dg EDGAR N. GQODLLETT, OF CHICAGO, ILLINOIS, ASSIGNOR. BY

DIRECT AND MESNE ASSIGNMENTS. ID MQNQLITI-IIC MACHINE COMPANY, A CORIORATIQN OF ILLINOIS.

' VIBRATOR.

Specification of Letters Patent.

Patented is, 1920.

Application filed April 25, 1919, Serial No. 292,729. Renewed April 10, 1920. Serial No. 373,005.

To all whom it may 0mm; 7

Be it known that I, EDGAR N. Goonnu'r'r, of Chicago, Cook county, Illinois, a citizen of the United States of America, have invented a certain new and useful Improvement in Vibrators, of which the following is a specification.

My vibrator has many lines of application. But in the manufacture of objects of concrete it is essential for the best results that the aggregate composing the said concrete shall be so disturbed during its process of forming and hardening that its larger ingredients Shit-ll be compactly nested to fill all voids; and the more fluid ingredients so kept in motion that they shall thoroughly infiltrate the other portions. To accomplish theseresults I propose in my device three unified motions; av gentle, horizontal motion, an agitated end stroke movement, and a lateralivave motion.' Many other objects will appear to one conversantwith the art, and various forms will be apparent to the one practised in the art.

Figure 1 is a side elevation.

Fig. 2 is a surface view,.with a cut-away end portion showing the detail of the connecting rod.

Fig. 3 is a cross section on lines 33 of Fig. 1, looking in the direction of the arrows.

Fig. 4 is an enlarged detail of one of the bearing points shown in the other figures.

In the device as'illustrated, 1 is a fixed base, and may be constructed of any suitable material. In said base are provided a series of sockets 1, and each of said sockets may have a bottom 4 of such material as may begfound suitable for a bearing surface: these sockets 1' are matched on either side of the basic frame 1. A member 2 may be constructed of such material as is found most suitable, but ordinarily I prefer to construct. the same of wood. comprising two longitudinal members held apart by blocks 2", and bound together by rods 2*. Said member 2 has sockets 13} on the bottom there.- of, and on either side thereof, similar to 1 on the base member, andadapted to register with said base 1 sockets. Vertically assembled in the said sockets I provide a rocker 3 whose ends taper to an edge 3; one of these edges adapted torest upon thebearing 4 in the base 1; the base 4 of the sockets in the member 2 adapted to rest upon the members 1 and 2. I

upper edge 3 of the rocker 3. The sockets 1" are V shaped, and arranged to permit a certain horizontal movement of the member 2. [he rockers 3 are held in position laterally by cleats 5 and bolts 6 on both the provide a functioning arrangement consisting of a line shaft 7 hav ng thereon a gear 8, adapted to drive a pinion 9; one end 11 of connection rod 10 is connected to a crank pin on pinion 9; the opposite end of said connecting rod 10 1S ournally attached to the member 2, on a shaft 12. I may provide a,lostmotion 13 to produce acertain jar to the device at either end of the stroke. I provide an cecentric 14 rotatable on a pin 15 at either side of the member 2; the eccentricity of one being the reverse of the eccentricity of the other; a portion of the circumference of each of the said eccentrics being toothed 16. I also provide a toothed rack 17 attached to either side of the member 2, and adapted to mesh with the teeth 16 on the eccentric 14. It will be, observed that as the member 2 is functioned horizontally, the said eccentrics 14 will communicate to the said n1ember2 a certain wave motion laterally.

In the application of the device a mold is placed upon the frame 2, and the materials intended to form the resultant are delivered into the mold in a more or less plastic condition, there being generally a certain proportion of comparatively larger ingredients such as broken stone, slag, or other such ma,- terial; and there being a certain proportion of cement and sand; with also a certain proportion of water. In the process of formation there is usually the presence of air bubbles and it is essential to the highest quality of the product that it shall be freed of these air cells. Further, in the said formation it is also very desirable that the larger ingredients be sufficiently agitated to cause them to firmly nest themselves; While the sand element is being infiltrated to produce-compactness and solidity. The device as illustrated is assumed tomost perfectly accomplish this by a motion which is slightly rocking, occasioned by the rise and fall over the peak of the travel of the supports 3-which tends to toss the forming material gently: the short sharp stroke of the motion communicated causes a jar to the tossing material at each end of the stroke; at the same all cells. The device which I illustrate is primarily intended to be used in the manufactu re of concrete movable articles.

I do not limit myself to any material in the structure, nor to its applications, and only limit myself to thefdisplay of the principlesin'volved,1 and as limited by the scope of the claims. v

What I claim and ters Patent is r.

1. In a device for the purposes described a base having thereon a multiplicity of sockets substantially Vshaped; inserted and operable therein a vertically positioned bar, having tapering ends; sald bar extending above the horizontal surface line of the base: corresponding structural arrangement on the opposite side of the base: a' frame substantially in surface form to the base;

said frame havingupon the underside, at the edges thereofrV shaped sockets registering with the V shaped sockets in the base, but in inverse position, adapted to rest upon the vertical bars aforementioned: retaining means on the base and on the frame to maintain the vertical alinement of the vertical bars: means to communicate motion to the frame. 7

2. In a device for the purposes described a fixedbase'; a supported frame adapted to oscillation; means consisting of a multiplicity of pivotal points adapted to effect a determined longitudinal movement; means adapted to communicate horizontal jarring motion.

3. In a device for the purposes described a fixed'base having a multiplicity of hearing surfaces on either side thereof; a movable frame supported thereabove, said supported frame having a series of bearing surfaces registering with the bearing surfaces on the fixed base: a multiplicity of rocker members, each having a knife edge on either end thereof adapted to effect a free even longitudinal motion: means .for communieating a longitudinal motion to said frame; and means to jar the said supported frame 'at-either end of its travel.

4. In a device of the character described afixed base; a multiplicity of bearings on eitherside of said base; a movable frame desire to secure by Letsupported above said base; a multiplicity of pivotal means cooperating between said base and said frame adapted to effect a horizontal movement of said supporting frame abovesaid base; means operating upon the said frame to cause the same to have a wave like motion laterally, coincident with a dis-. turbed longitudinal motion: means to communicate an irregular longitudinal movement to the supported frame.

5. In a device for the purposes described a relatively fixed base: a movable frame coacting with 'the fixed base adapted to os-' cillation: means consisting of a multiplicity of anti-friction pivotal points interposed between the fixed frame and the movable frame adapted to effect adetermined longitudinal arcuate movement: means adapted to communicate a compound movement to the movable frame.

6. In a device for the purposes described a relatively fixed base: a movable frame coacting with the fixed base adapted to oscillation: means consisting of a multiplicity of anti-friction pivotal points interposed between the fixed base and the movable frame adapted to effect a determined longitudinal arcuate movement; means adapted to communicate a quadruple irregular movement.

7. Ina device for the purposes described a, relativel fixed base: a movable frame coacting wit 1 the fixed base adapted to oscillation; means consisting of a multiplicity of anti-friction pivotal points interposed between the fixed base and the movable frame adapted to effect a determined longitudinal arcuate movement; means adapted to communicate a quadruple constant motion to the movable frame. i

8. In a device for the purposes described a relatively fixed base: a movable frame coacting with the fixed base adapted to oscillation; means consisting of a multiplicity of anti-friction pivotal points interposed between the fixedbase and the movable frame adapted to effect a determined longitudinal arcuate movement; means adapted to communicate horizontal, lateral, vertical and jarring motions simultaneously.

Signed at Chicago, Illinois, April 23, 1919.

EDGAR N. GOODLETT.

Witnesses:

WINFIELI) S. \VILLIAMS, ANNETA BUCKLER. 

